NEWS

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ARTool 0.11.2 (2025-04-10)

Minor changes:

• Retain unconcatenated columns in art.con() internal data so that contrasts can be computed for random slopes in mixed effects models (#37).

Bug fixes:

• Fix broken examples due to changes in emmeans.

ARTool 0.11.1 (2021-10-13)

Minor changes:

• Updated DOIs and citations (#32).
• Ensure tibbles can be used with art.con() (#27).

ARTool 0.11.0 (2021-02-24)

Major changes:

• Added the art.con() and artlm.con() implementing the ART-C procedure for contrast testing, and updated vignette("art-contrasts") to demonstrate it.

ARTool 0.10.8 (2020-10-31)

Minor release to update maintainer email address.

ARTool 0.10.7 (2020-03-20)

Minor changes:

• Forward-compatible fix for tests needed for when stringsAsFactors default becomes FALSE (in R 4).

Bug fixes:

• Fix for a bug in alignment that occurs with high-order interactions (4+) (thanks to Hidekazu Kaneko).

ARTool 0.10.6 (2019-02-03)

Minor changes:

• Minor changes to ensure tests pass due to changes in output from lme4::lmer

ARTool 0.10.5 (2018-07-09)

Minor changes:

• Replace lsmeans with emmeans in code and docs due to lsmeans being deprecated
• Use psych::d.ci for Cohen's d CIs in effect size vignette

ARTool 0.10.4 (2016-10-24)

Minor changes:

• Reference phia vignette using function call instead of non-canonical URL
• Cautionary note about standardized effect sizes in effect size vignette
• Added testInteractions() example as alternative in contrasts vignette

Bug fixes:

• Dependency fixes for failed test at testthat/test.artlm.R:35 (our use of lsmeans() in that test requires some additional packages only declared as "Suggests" in lsmeans, so now we "Suggest" them as well).

ARTool 0.10.1

New features:

• New vignette describing effect size estimates
• Using lsmeans() interactions argument instead of phia for interaction contrasts vignette

Bug fixes:

• Require R >= 3.2 and lsmeans >= 2.22 to fix some bugs in earlier versions

ARTool 0.10.0 (2016-01-11)

New features:

• Support for Error() terms in model formulas (resulting models are run using aov())
• Checks for numeric variables passed into formulas that may cause incorrect results (if the user intended data to be treated as categorical)
• More detailed ANOVA tables
• New vignette describing contrast tests, particularly for interactions (vignette("art-contrasts"))

Bug fixes:

• Formulas now correctly support arbitrary expressions as terms (rather than just column names).

ARTool 0.9.5 (2015-06-01)

Testing fix for changes in upcoming version of lsmeans: round lsmeans p value tests to 5 decimal places to accommodate changes to Tukey adjustment

ARTool 0.9.4 (2015-05-28)

Minor changes to testing based on updated version of testthat (0.10.0):

• More closely follow recommended testthat usage
• Skip tests requiring lsmeans if it is not installed